1,Solar cell of single crystal silicon 2,Working about120 hours 3,Easy installation, no maintenance,environmentally friendly Detailed Product Description Solar light1.solar cell of single crystal silicon with utmost power 520mw . 2.flash frequency 300+ 10 times/minute (frequency can be set according to actual needs),becoming brighter/dimmer slowly.3.Ultra high lightness LED with 6 tubes.4. ...